[Busec] BUsec this week: Adam ONeill (Tues 11AM)

Sharon Goldberg goldbe at cs.bu.edu
Sun Apr 22 19:19:02 EDT 2012

Sorry for the spam, but tomorrow's reading group at MIT starts at 9am.

On Sun, Apr 22, 2012 at 7:05 PM, Sharon Goldberg <goldbe at cs.bu.edu> wrote:
> Hi All,
> This Tuesday, Adam will tell us about his new work on functional
> encryption. Tuesday 11AM in MCS148, with lunch, and open to the public
> as usual.
> Also note the reading group tomorrow, Monday, at 11am at MIT, with
> Omer leading the discussion.
> Sharon
> On Security Notions for Functional Encryption
> Speaker: Adam ONeill (BU)
> Tuesday 11AM MCS148 (111 Cummington St, Boston)
> Abstract: We introduce various security notions for functional
> encryption (FE), a concept put forth by Boneh, Sahai, and Waters
> (BSW). We study relations among these notions and their achievability.
>  First, we show that indistinguishability (IND) and semantic security
> (SS) based notions of security are inequivalent for FE in general, in
> contrast to the classical setting of public-key encryption.  Then,
> extending a result of BSW, we show that the SS notion is impossible to
> achieve due to its implicit incorporation of key-revealing
> selective-opening attacks (SOA-K). Finally, we put forth several
> relaxations of the SS notion to capture sans-SOA-K semantic security
> and show they are equivalent to IND for important functionalities
> including existing forms of predicate encryption for which positive
> results under IND are known.
> Parts based on joint work with Mihir Bellare and Srdjan Krstic.
> ---------- Forwarded message ----------
> From: Huijia Rachel Lin <huijia at cs.cornell.edu>
> Date: Sat, Apr 21, 2012 at 11:04 PM
> Hi Everyone,
> Monday, April 23rd, we will have our reading group meeting at 9:00am
> at MIT. Omer will speak.
> Speaker: Omer Paneth
> Papers: Cryptography in NC0 by Benny Applebaum, Yuval Ishai, Eyal Kushilevitz
> Time:   9:00am--10:30am,  Apr. 23rd, 2012
> Location: STATA G631
> See you!
> Rachel
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> --
> Sharon Goldberg
> Computer Science, Boston University
> http://www.cs.bu.edu/~goldbe

Sharon Goldberg
Computer Science, Boston University

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